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| .Dd May 27, 2021 |
| .Dt ZFS-ROLLBACK 8 |
| .Os |
| . |
| .Sh NAME |
| .Nm zfs-rollback |
| .Nd roll ZFS dataset back to snapshot |
| .Sh SYNOPSIS |
| .Nm zfs |
| .Cm rollback |
| .Op Fl Rfr |
| .Ar snapshot |
| . |
| .Sh DESCRIPTION |
| When a dataset is rolled back, all data that has changed since the snapshot is |
| discarded, and the dataset reverts to the state at the time of the snapshot. |
| By default, the command refuses to roll back to a snapshot other than the most |
| recent one. |
| In order to do so, all intermediate snapshots and bookmarks must be destroyed by |
| specifying the |
| .Fl r |
| option. |
| .Pp |
| The |
| .Fl rR |
| options do not recursively destroy the child snapshots of a recursive snapshot. |
| Only direct snapshots of the specified filesystem are destroyed by either of |
| these options. |
| To completely roll back a recursive snapshot, you must roll back the individual |
| child snapshots. |
| .Bl -tag -width "-R" |
| .It Fl R |
| Destroy any more recent snapshots and bookmarks, as well as any clones of those |
| snapshots. |
| .It Fl f |
| Used with the |
| .Fl R |
| option to force an unmount of any clone file systems that are to be destroyed. |
| .It Fl r |
| Destroy any snapshots and bookmarks more recent than the one specified. |
| .El |
| . |
| .Sh SEE ALSO |
| .Xr zfs-snapshot 8 |